Carry one in your duffel when you’re traveling among ancient watchtowers, slip one on for a spin around Adam’s Gulch or use one as a pillow on the train to Monterosso. This versatile crew, made with the lightest of our merino wool fabrics, will keep you dry and comfortable across a broad range of conditions and continents. Merino is naturally breathable, regulates body temperature and stretches. It's wonderfully soft and naturally resists odor. Ours is responsibly sourced from the grasslands of Patagonia. We slow wash it for softness and shrink resistance, without the use of chlorine, then blend it with 35% Capilene® polyester (100% recycled) for durability and for dry times and moisture transfer superior to that of 100% merino. The set-in sleeves and offset shoulder and side seams lie smoothly beneath pack straps; elastic thumb loops keep your sleeves in place. Machine wash cold; machine dry at low temperatures. Fabric is bluesign® approved.

Fine merino wool responsibly sourced from the grasslands of Patagonia and blended with Capilene® all-recycled polyester for improved wicking, durability and dry time

Merino Wool Blend

Exceptionally soft, naturally breathable and warm even when wet, merino wool regulates your body temperature, has a great warmth-to-weight ratio, naturally controls odor and stretches as you move.

Our merino wool is sustainably sourced from the grasslands of Patagonia. We slow wash it for softness and shrink-resistance without the use of chlorine.

For our Merino Wool Baselayers we blend merino wool with all-recycled polyester for increased durability, improved wicking and faster dry times. The resulting garment provides higher performance in the field, is less fussy to care for and remains exceptionally soft against the skin, naturally odor resistant and machine washable. Our merino baselayer fabrics are bluesign® approved.

Environmentally Friendly

Patagonia has worked with bluesign technologies since 2000 to evaluate and reduce resource consumption in our materials supply chain, and to assist us with managing the chemicals, dyes and finishes used in the process. bluesign technologies, based in Switzerland, works at each step in the textile supply chain to approve chemicals, processes, materials, and products that are safe for the environment, safe for workers, and safe for the end customers.

In 2007, Patagonia became the first brand to officially join the network of bluesign® system partners.

Any fabric you see that’s bluesign® approved offers the highest level of consumer safety by employing methods and materials in their manufacture that conserve resources and minimize impacts on people and the environment.

The Footprint Chronicles®

We promote fair labor practices, safe working conditions and environmental responsibility throughout the Patagonia supply chain.Below are the suppliers that impact the Patagonia Men's Merino 1 Silkweight CrewRead more

Measurements refer to body size, not garment dimensions, and are in inches, unless otherwise noted.* Inseam will vary depending on style; when lengths are offered, "short" is 30, "regular" is 32 and "long" is 34, unless otherwise noted.

XX-Small

Chest

31-33

Neck

13 1/2-14

Sleeve

31

Waist

26

Inseam*

30

Women's Conversion Size

-

X-Small

Chest

34-35

Neck

14-14 1/2

Sleeve

32

Waist

28

Inseam*

31

Women's Conversion Size

4-6

Small

Chest

36-38

Neck

15-15 1/2

Sleeve

33

Waist

29-30

Inseam*

31

Women's Conversion Size

8-10

Medium

Chest

38-40

Neck

15 1/2-16

Sleeve

34

Waist

31-33

Inseam*

32

Women's Conversion Size

12-14

Large

Chest

42-44

Neck

16 1/2-17

Sleeve

35

Waist

34-36

Inseam*

33

Women's Conversion Size

14-16

X-Large

Chest

46-48

Neck

17-17 1/2

Sleeve

36

Waist

38-40

Inseam*

33

Women's Conversion Size

-

XX-Large

Chest

50-52

Neck

17 1/2-18

Sleeve

37

Waist

42-44

Inseam*

33

Women's Conversion Size

-

XXX-Large

Chest

54-56

Neck

18 1/2

Sleeve

38

Waist

46-48

Inseam*

33

Women's Conversion Size

-

Measurements refer to body size, not garment dimensions, and are in inches, unless otherwise noted.* Inseam will vary depending on style; when lengths are offered, "short" is 30, "regular" is 32 and "long" is 33, unless otherwise noted.

Men's Fit Guide

Though each Patagonia® product is designed and shaped specifically for its intended use, we can generalize our fit descriptions in four ways: